1978 Kawasaki KZ1000 Z1R (Top Speed Test) | Modified |

The Kawasaki KZ1000 Z1R was introduced in 1978 with a theoretical top speed of 138 mph and was a direct replacement for the previous model, the Kawasaki KZ900. When first released the KZ1000 Z1R was only available in a metallic silver-blue paint and was not very well received by the motorcycle community. Later that year the KZ1000 Z1R was chosen as the motorcycle of the year due to its unique 4-1 exhaust and cast wheels. Stock the KZ1000 Z1R came with 90 hp and a chain driven 5 speed wet clutch transmission. Another notable achievement for this motorcycle was its AMA Superbike Championship win in 1977, ridden by Reg Pridemore.

As you can see in the test video the Z1R pulls insanely hard to 130 mph where it seems to settle down and start steadily making its way to the final top speed. Please note in this test we were running a prototype front fender that was custom made for the bike. After the testing was complete we found the front fender to be counter productive at top speed, and ended up increasing the overall drag coefficient of the bike.

NOTE: We are working on a solution to increase video quality on future motorcycle testing video's! Please bare with us in the mean time. - JB

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Vehicle Specifications:
Make: Kawasaki
Model: KZ1000 Z1R
Year Tested: 1978
Max Power: 177 hp @ N/A rpm
Max Torque: 110 lb-ft @ N/A rpm
Engine: 1428cc
Gearbox: 5-Speed Manual
Drive: RWD
Weight: 441 lbs
Distance Tested: 1 Mile
Date Tested: 3/9/2019

Runway Specifications:
Length: (3.22 Miles) or (5.15 Kilometers)
Width: (300 Feet) or (91.44 Meters)
Elevation Above Sea Level: (8.3 Feet) or (2.53 Meters)
Elevation Change: (0.25 Inches) or (0.635 Centimeters)
Surface Material: Concrete - (15,000 Feet) or (4,572 Meters)
Asphalt - (2,000 Feet) or (609.6 Meters)

Weather Conditions:
10am:
Temp: 23C/73.4F
Dew point: 18C/64.4F
Humidity: 73%
Wind: 00000kt (0 mph)
Surface Temp: 25C/77F

3pm:
Temp: 26C/78.8F
Dew point: 18C/64.4F
Humidity: 61%
Wind: 09008kt (9 MPH)
Wind Direction:southeast
Surface Temp: 33.9C/93F


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This Straight Line Aerodynamic Testing Session took place in Merritt Island, Florida. To learn more visit us at:

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